STEEL DYNAMICS INC

Ticker: STLD CUSIP: 858119100 Class: COMMON STOCK

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 1,232 Value ($000) $209 Avg Close $158.36 Range $137.70 - $177.84

Q4 2024

Shares 1 Value ($000) $0 Avg Close $130.47 Range $111.65 - $152.72

Q3 2022

Shares 128,128 Value ($000) $9,091 Avg Close $71.84 Range $59.25 - $84.09

Q2 2022

Shares 122,807 Value ($000) $8,124 Avg Close $75.64 Range $60.78 - $94.76

Q4 2021

Shares 34,781 Value ($000) $2,159 Avg Close $58.59 Range $52.93 - $64.63

Q3 2021

Shares 51,437 Value ($000) $3,008 Avg Close $59.61 Range $51.19 - $69.35

Q2 2021

Shares 27,135 Value ($000) $1,617 Avg Close $54.47 Range $45.84 - $62.09

Q1 2021

Shares 4,937 Value ($000) $251 Avg Close $38.96 Range $31.19 - $48.49

Q4 2020

Shares 2,526 Value ($000) $93 Avg Close $31.85 Range $25.96 - $36.89

Q1 2020

Shares 1 Value ($000) $0 Avg Close $24.36 Range $13.32 - $30.61

Q2 2019

Shares 1 Value ($000) $0 Avg Close $26.59 Range $21.75 - $31.41

Q1 2019

Shares 1,294 Value ($000) $46 Avg Close $30.67 Range $25.17 - $33.96

Q4 2018

Shares 1,437 Value ($000) $43 Avg Close $32.42 Range $24.79 - $39.93

Q3 2018

Shares 786 Value ($000) $36 Avg Close $39.33 Range $35.70 - $42.45

Q1 2016

Shares 41,781 Value ($000) $940 Avg Close $15.36 Range $12.48 - $18.79

Q4 2015

Shares 23,221 Value ($000) $415 Avg Close $14.45 Range $13.12 - $15.93

Q3 2015

Shares 28,972 Value ($000) $498 Avg Close $15.53 Range $13.35 - $17.42

Q2 2015

Shares 35,763 Value ($000) $741 Avg Close $17.16 Range $15.54 - $18.46

Q1 2015

Shares 62,452 Value ($000) $1,255 Avg Close $14.75 Range $13.06 - $16.57

Q4 2014

Shares 25,404 Value ($000) $501 Avg Close $16.97 Range $14.81 - $18.55

Q3 2014

Shares 7,217 Value ($000) $163 Avg Close $17.12 Range $13.89 - $19.97

Q2 2014

Shares 1,513 Value ($000) $27 Avg Close $13.98 Range $13.22 - $14.83

Q4 2013

Shares 108 Value ($000) $2 Avg Close $14.08 Range $12.49 - $15.25

Q3 2013

Shares 694 Value ($000) $12 Avg Close $12.11 Range $11.42 - $13.41

Q2 2013

Shares 2,813 Value ($000) $42 Avg Close $11.35 Range $10.49 - $12.29

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,232	$209	$158.36	$137.70 - $177.84
Q4 2024	1	$0	$130.47	$111.65 - $152.72
Q3 2022	128,128	$9,091	$71.84	$59.25 - $84.09
Q2 2022	122,807	$8,124	$75.64	$60.78 - $94.76
Q4 2021	34,781	$2,159	$58.59	$52.93 - $64.63
Q3 2021	51,437	$3,008	$59.61	$51.19 - $69.35
Q2 2021	27,135	$1,617	$54.47	$45.84 - $62.09
Q1 2021	4,937	$251	$38.96	$31.19 - $48.49
Q4 2020	2,526	$93	$31.85	$25.96 - $36.89
Q1 2020	1	$0	$24.36	$13.32 - $30.61
Q2 2019	1	$0	$26.59	$21.75 - $31.41
Q1 2019	1,294	$46	$30.67	$25.17 - $33.96
Q4 2018	1,437	$43	$32.42	$24.79 - $39.93
Q3 2018	786	$36	$39.33	$35.70 - $42.45
Q1 2016	41,781	$940	$15.36	$12.48 - $18.79
Q4 2015	23,221	$415	$14.45	$13.12 - $15.93
Q3 2015	28,972	$498	$15.53	$13.35 - $17.42
Q2 2015	35,763	$741	$17.16	$15.54 - $18.46
Q1 2015	62,452	$1,255	$14.75	$13.06 - $16.57
Q4 2014	25,404	$501	$16.97	$14.81 - $18.55
Q3 2014	7,217	$163	$17.12	$13.89 - $19.97
Q2 2014	1,513	$27	$13.98	$13.22 - $14.83
Q4 2013	108	$2	$14.08	$12.49 - $15.25
Q3 2013	694	$12	$12.11	$11.42 - $13.41
Q2 2013	2,813	$42	$11.35	$10.49 - $12.29